The Vibrant Performance 1140 Ultra-Quiet 2.25" Mufflers feature T304 stainless steel construction for durability, along with a true straight-through perforated core that's surrounded with Vibrant's premium multi-layer sound suppression materials. To help further reduce exhaust tone, these Ultra-Quiet resonators feature a larger sound chamber than standard resonators. So, if you're in the market for an impressive, ultra-quiet resonator, Vibrant Performance has just what you're after. Vibrant's Ultra Quiet Resonator utilizes a larger sound absorption chamber for better sound suppression than typical bottle style resonators. Feature Vibrant's "True Straight Through" perforated core, surrounded by our premium multi-layer sound absorption materials. Originally designed to help eliminate the "rifling" noise that is common with most 6 cylinder and 8 cylinder vehicles equipped with straight through performance exhaust systems. SPECIFICATIONS: Inlet Diameter 2.250" Outlet Diameter 2.250" Resonator Size 4.50" x 6.50" Oval x 9.75" Long Overall Length 13.75" Material 304 Stainless
